BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Some higher-rank sheaves on Calabi-Yau 3-folds and Gromov-Witten i
 nvariants - Jacopo Stoppa (Cambridge)
DTSTART:20100127T141500Z
DTEND:20100127T151500Z
UID:TALK21950@talks.cam.ac.uk
CONTACT:Burt Totaro
DESCRIPTION:I will describe a correspondence between some\nDonaldson-Thoma
 s invariants\ncounting high rank sheaves on a Calabi-Yau 3-fold and the Gr
 omov-Witten invariants\ncounting rational curves on blowups of a weighted 
 projective plane. This\ncorrespondence extends one found by Gross-Pandhari
 pande where instead of\nsheaves one has representations of a Kronecker qui
 ver.
LOCATION:MR13\, CMS
END:VEVENT
END:VCALENDAR